Cut-off device.



A. KADOW.

GUT-off DEVICE.

APPLIOATION PILEDIAPB. 12.1911.

Patented Oct. 8, 1912 2 SHEETS-SHEET 1.

A. KADO W.

CUT-OFF DEVICE.

APPLICATION zum) Arx. 12* 1911.

1,040,346. Patented 001;. 8, 1912.I

2 SHEETS-SHEET 2.

rrED sfrafres Auftrsr mow, or TOLEDO, omo. Assmann fro Tris or TOLEDO, onto, .A cer CUT-F? DEVICE.

'Specification of Letters Patent.

srLA en 'am-entr if: contrasti? l nanos or onio.

ra rented oet. s. 1o i Griginal application led July', 191.0, Serial No. 570,621. Divided and this application filed April lil,

Serial No. 620,555A

To all whom it may concern: Y

Be it known that I, AUGUST Kaoow, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio,

.have invented certain new and useful Im- Among the oh}ects of my inve-ution' areV the following: to provide mechanis'mrfor cutting oil'` the surplus metal from the gathering mechanism which shall be simple in construction, certain in operation and .so constructed that, if obstructed, it will notl interfere with the operation of the gather.4 ing mechanism and will not be itself injured. Also-to provide such a mechanism which may he timed to operate so as to drop the cut-olf either inside or outside of the athering ring, as may be desired, but pre erably within the furnace but outside of the gathering ring. These and such other objects as may appear are attained by my invent-ion, a convenient embodiment ot which is found in the accompanying drawings, in which- Figu'rc 1 is a side elevation showing my improved cut-ofi" mechanism applied to the gathering mechanism of my said pending application Serial No. 570,621. Fig. 2 is a perl spective View of the cut-off knife, et cetera.

Fig. 3 is an enlarged, fragmentary detail of `the parts in the position `shown in Fig. l.

Fig. 4 is an enlarged detail of the gathering head with the cut-olf knife in position after the surplus metal has been cut oil'. Fig. 5 is a view partly in plan and partly in section of Fig. 4'.

Like characters .of reference indicate the same parts in the several figures of the drawings.

Asshowing a convenient application of my invention, the figures throughout show it as applied to the apparatus of my said copcnding application.

A indicates a glass-reducihg furnace or pot, within which the usual gatlieringring B. floats on the metal; C is a ram carriage Within which is mounted the ram l), which is periodically reciprocated hy any convenient means, as, for example, through ram dog slide E, theI rack lf, connecting 11 i wheels and rack G. The ram l) carrie.` gathering head H and the reciproruiiou Athe ram carries the gathering head ll i Athe furnace until the lower end of the ga ering head isyzlipped into the metal, then out of the furnace, where the forth-i Working of the glass lakes place. The im carriage C is carried on :i support, spill or frame-work I. Y

The cut-off knii'e l secured to a plate 1 provided with a stud' il." This stud ad justed to, the required position with rela tion to its axis` in a Clamp 4 and then is. tightly gripped in this clamp by means of a screw 5. This clamp is secured by a screw. or holt G to the end of a lever 7, which is swingingly mounted upon a pivot-,or screw S on the end of the ram D. 'lliese parts are all so adjusted and proportioned that. when the lever 7 is swung hack and forth, the cutting,r edge of the knife l will just nicely-Y ,clear the lower end or gathering port of the gathering head or neck molds H. The lever H7 is 'connected hy a pivot Sl with 4e rod 10 connecting it Wilhthemechanism which aotuat-es the cut-oill and extends into a sleeve 1Q. A pin extends transversely through th'e'end ofthe rod '10, which is within gthe sleevell, and-through slots 13 in each side of the sleeve-l2. A spring i4 surrounds the end of the rod l() between the collar 1l und one-cnd"of the sleeve l2, so as lo normallyY hold the pin in the rod sented in the lower ends of the slots? 13. The upper end of the-sleeve 12 is sef cured to a rod l'. whirlrpusses through a flange or lug 1G on the side nl the ram D. This rod 15 is provided with a cellar 1T and passes through u spring 18 which is seated at one end against the collar 1T and at theI other end against the flange ill, The spring 18 normally holds the parts in the position Shown in Figs. l and 3.

The upper end of the rod l5 is screwed into a sleeve i9. The other end of the sleeve 19 is pivoted at 20 to ou(` arm ot a hell ennui lever 21. The bell crank lever 2l is pivot The other arm of the hell crank lever 2l is provided with a roller The rod l0 provided with a collar l1 ally mounted :1h22 upon the side of the ram.

- forward position when it is dipping into the pot or furnace. As the ram retreats from the pot after gathering the metal, the roller 23 on the bell crank lever Q1 soon contacts with and rides-upwardly upon the inclined" plane 24. -The result of this is that the bell crank 21 is rocked, the rods l5 and 10 are moved forwardly, the lever 7 is swung for wardly and the knife is carried across the under face of the gathering head, cutting ott the surplus metal. It should be observed that. the spring 14 is of sufficient strength net locompress under the pressure ordir applied to it in' this operation. By

` nt of the parts. this surplus metal cui, otl1 at any desired point in the uflenal travel of the ram. .ine height of the inclined plane 24 is preferably such that the incline ends when the rocking of the lever 21 has carried the knife a sutlicient distance to cut ott the surplus gather, in which position itI may be held until the ram again moves forwardly and` as the roller 23 descends the inclined plane 24, the spring 18, expanding, draws the lever 7 back to the position shown in Figs. l and 3, which position it reaches before the rain dips in the `petal.

The inclined plane 24 is longitudinally adinstable, as, for example, by being bolted to its supporting structure through the slot As the lever 7 is not actuated until the roller 23 engages the inclined plane 24, it is ob` vious that the point in the travel of the ram at which the cut-ott willbe actuated can be determined by varying the longitudinal adjustment of the inclined plane Q4, so that the cutoff can either be actuated immediately as the ram withdraws, so as to drop the surplus metal immediately back of the gathering point, or, and this is the preferred practice, it can be actuated so as to drop the surplus metal between the gathering ring.

and the working opening of the pot or furnace, so that. the surplus metal, which is slightly chilled, will not affect the fluidity of the metal @'ithin the working ring and vet will be dropped at a point where it will be quickly raised to ay temperature where it will flow back into the pot. Or, if desired for any reason, the adjustment above noted may provide for dropping the surplus metal entirely outside of the furnace.

The sleeve 12 and spring 14 constitute a safety device. VVhilethe spring will not be compressed by the resistance made by the knife in cutting oft` the surplus metal when in working condition, or at least will not be compressed to any extent which will inter tere with the e'tliciency of the cut-ott, yet if the knife meets with any resistance, as, for

example, if the metal be unduly cooled or if stead of the continued operation of the device serving to buckle the connecting rods or otherwise injure the mechanism, the spring 14 will be compressed so that the bell crank 2l and rod 15 may be actuated even though the knife remains stationary and the rod 14 @vill simply telescope within the sleeve 12.

struction, whenever the knife has work to do the operation of the mechanism is positive, that is, the bell crank lever I21 and connected parts are positively driven, while, when the work has been accomplished, the knife is returned to osition for the next stroke by the expansion of the spring 18, thus avoiding reliance upon spring action to actuate the knife to perform its work, while utilizing the spring action solely to carry the knife back to its starting position, in which operation there is no load upon the spring other than the slight friction incident to returning the parts to said position4 T his insures a certainty of a prompt and efficient required, which is a, matter of great impor-- tance in handling such material as glass, in which the coolinvr is so rapid that the operation of the cut-0xff must be prompt, accurate and reliable at all times.

While I have shown this mechanism as applied to the gathering mechanism of my said co-pending application, it will, be understood that its utility is not at all confined to use with said mechanism, and, while I have illustrated my invention as embodied in what I at present consider to be its preferred form, it will be understood that my invention is not limited to this particular embodiment of it nor to any of the various details which may be changed as a matter of sliep expediency, but it is my purpose and intention to here cover both broadly and specifi' cally whatever in the mechanism I have above shown and described is patentably new I claim:

1, The combination with gathering mechanism, comprising a ram and means for proing device carried by said ram, a cut-off knife pivotally supportedbn said ram and arranged to swing in the are of a. circle across the inlet port of said gathering device, and means positively actuated by backward travel of the ram to swing the cut-oil' knife across the face of the gathering device to cut otf the Surplus metal.

2. The combination with gathering mechanism, comprising a ram and means for pro jecting the ram into a furnace, of a gathering device carried by said ram, a cut-off knife pivotally supported on said ram and arranged to swing in the are of a circle across It will also be observed that, with this con` jecting the ram into a furnace, of a gatherany obstacle drops into the mechanism, in-

cut-olf at the exact minute and exact point the inlet port of said gathering device, and I actuated means of said operating mechanieans iositively actuated by backward travel o the rain to swing the cutoff knife across the face of the gathering devire to cut oli' the surpins metal, and spring actuated means for returning the cutoff knife to its original position during the forward travel. of the ram.

3. The combination with gathering mechanism, comprising n rain and means for moving the ram into and out of a furnace, of gathering means carried by said ram, a cut-oif knife pivotally mounted upon said rain and arranged to swing across the face of `said gathering means, and operating -rnechanisni Afor said cut-off knife Comprising rods and levers, a spring for normally holding the eut-ofi knife in one position, and an inclined plane arranged in the path of said operating means as the ram moves back to the Fornace whereby said rods and levers will be operated to positively swing said rut-oil: knife against the action of said springs so as to cut ofi the surplus metal gathered by the gathering device.

4. The combination with a furnace, of gathering means, means for reciprocatin said gathering means into and from saii furnace, a eut-olf knife carried by said gathering means, and means for actuating said cut-offkriife to cut ofi' the surplus gather, said means being adjustable so as to automatically operate the cut-otf knife at any desired point between the gathering point and the exterior of the furnace.

5. The combination with glass gathering apparatus, of a cut-of knife, means for operating said cutoff knife, said means comprising a yielding link in the connection between said cut-of knife and the positively nism.

6, The combination with a gathering head, of a eut-off knife mounted to be swung back and forth across the face of said gathering head, means for actuating said cut-oil' knife, said means comprising a lever, means for rocking said lever, connections between said lever and the cut-olf knife, a longitudinally yielding link in said connections, and means for operating said lever in a reverse direction.

7. The combination with a gathering head, of a cut-olf knife mounted to be swung across the gathering port of said gatherinv head, and means for actuating said cut-od knife, said means comprising a lever, mean.` for positively operating said lever in one direction, a rod constituting a link befween said lever and the cut-off knife, a sleeve upon said rod, a second rod telescoped at one end within said sleeve and constituting a. link between said lever and the rut-olf knife a collar on said second rod, a spring seated between said collar and one end of said sleeve, all so arranged that when the travel of the cut-o5 knife inone direction is resisted said spring will be compressed and said second-named vrod Wil be teleseoped Withinsaid sleeve, a second spring, and an abutment for said second spring so arranged that the action of said second spring will tend to operate said lever in a direct-ion opposite to the direction in which said lever is positively operated.

AUGUST KADOW.

Witnesses:

S. O. RICHARDSON, Jr., R. A. Bo'rHwmLL. 

